Pentaho SQL to MongoDb - Array Issue - sql

Question

I need to update elements in an array, then, when I run the transformation at the first time, the array receives the righ numbers if elements in the PROD array. But if I run it again, the array will receives the same elements
Example:
At the first time, I got the document below, and It is correct:
{
"_id" : ObjectId("58e2c81f781a75592f69f8a5"),
"DDATA_ORC" : ISODate("2016-08-02T03:00:00.000Z"),
"SNUMORC" : "113239",
"PROD" : [
{
"SPRODUTO" : "TONER HP CE411A CIANO (305A)"
}
]
}
But if I run the transformation again, the PROD array will be updated with the same SPRODUTO:
{
"_id" : ObjectId("58e2c81f781a75592f69f8a5"),
"DDATA_ORC" : ISODate("2016-08-02T03:00:00.000Z"),
"SNUMORC" : "113239",
"PROD" : [
{
"SPRODUTO" : "TONER HP CE411A CIANO (305A)"
},
{
"SPRODUTO" : "TONER HP CE411A CIANO (305A)"
}
]
}
It is a problem because I will get wrong results for queries.
That is may plugin configurations:
Options Tab and Document Path tab
I need to update the array only if It receives or lose an item.
Thanks in advance

Answer 1

I solved this issue.
If anyone have this problem, the solution is to create 2 "MongoDB Output". In the first output, you need to set the array (the array will be recreated every time that the update query runs sucessfuly) . I did It using a dummy field.
First Output Document Fields
In the second "MongoDB Output", You need to execute a push to populate the array.
Second Output Document Fields
In the "Output Options" tab, You have to set Update, Upsert and "Modifier Update"